diff options
| -rw-r--r-- | src/graphics_opengl.c | 157 |
1 files changed, 102 insertions, 55 deletions
diff --git a/src/graphics_opengl.c b/src/graphics_opengl.c index 9e200de..fd079cf 100644 --- a/src/graphics_opengl.c +++ b/src/graphics_opengl.c @@ -1,96 +1,143 @@ - #include <string.h> #include <stdlib.h> #include <stdio.h> #include <GL/glut.h> +#include <GL/freeglut_ext.h> + +#include "common.h" GLenum doubleBuffer; GLubyte ubImage[65536]; +void set_aspect_ratio(int w,int h) { + glViewport(0,0,w,h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(0,w,0,h,-1,1); +// glScalef(1,-1,1); +// glTranslatef(0,-h,0); +} + +void set_color_based_on_distance(real d) { + //scale this color based on distance... closer is lighter. +// float g; +// g=d/100.0 + glColor3f(0.0, 1.0, 0.0); +} + +void set_clipping_rectangle(int x,int y,int w,int h) { + +} + void draw_cs_line(cs_t p1,cs_t p2) { - + glBegin(GL_LINES); + glColor3f(0.0, 1.0, 0.0); + glVertex2i(p1.x,p1.y); + glVertex2i(p2.x,p2.y); + glEnd(); } void draw_cs_text() { + +} +void draw_cs_shape(cs_s_t s) { + int i; + for(i=0;i<s.len+(s.len==1);i++) {//this shape is closed! + draw_cs_line(s.p[i],s.p[(i+1)%(s.len+(s.len==1))]); + } +/* glBegin(GL_LINE_STRIP); + glColor3f(0.0, 1.0, 0.0); + for(i=0;i<s.len+(s.len==1);i++) { + glVertex2i(s.p[i].x,s.p[i].y); + } + glEnd(); +*/ } -void draw_c3_shape() { - //oh lawdy... this should be draw_cs_shape... +void draw_cs_filled_shape(cs_s_t s) { + draw_cs_shape(s); +// glBegin(GL_POLYGON); +// glVertex2s(); +// glEnd(); } -static void -graphics_init(void) -{ - GLenum type; - int j; - GLubyte *img; - GLsizei imgWidth = 128; - - type = GLUT_RGB; - type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; - glutInitDisplayMode(type); - glutCreateWindow("ABGR extension"); - if (!glutExtensionSupported("GL_EXT_abgr")) { - printf("Couldn't find abgr extension.\n"); - exit(0); - } +void set_color() { + glColor3f(0.0, 1.0, 0.0); +} - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluPerspective(60.0, 1.0, 0.1, 1000.0); - glMatrixMode(GL_MODELVIEW); - glDisable(GL_DITHER); +void clear_backbuffer() { + glClearColor(0.0, 0.0, 0.0, 1.0); + glClear(GL_COLOR_BUFFER_BIT); +} - glutKeyboardFunc(keypress_handler); - glutDisplayFunc(draw_screen); +void flipscreen() { +// glutSwapBuffers(); + glFlush(); +} + +void red_and_blue_magic() { } -/* ARGSUSED1 */ -static void -keypress_handler(unsigned char key, int x, int y) -{ +void keypress_handler(unsigned char key, int x, int y) { switch (key) { case 27: exit(0); } } -static void draw_screen(void) +/* draw_screen is in graphics.c +void draw_screen(void) { - glClearColor(0.0, 0.0, 0.0, 1.0); - glClear(GL_COLOR_BUFFER_BIT); +}*/ - glRasterPos3f(0.2, -0.8, -1.5); - glDrawPixels(128, 128, GL_RGBA, GL_UNSIGNED_BYTE, ubImage); - if (doubleBuffer) { - glutSwapBuffers(); - } else { - glFlush(); - } -} +/*void derp_screen() { + glClear(GL_COLOR_BUFFER_BIT); + + draw_cs_line((cs_t){0,10},(cs_t){200,210}); + +// clear_backbuffer(); +// set_color(); + flipscreen(); +}*/ -static void -Args(int argc, char **argv) +void graphics_init(void) { - GLint i; +// GLenum type; - doubleBuffer = GL_TRUE; +// type = GLUT_RGB; +// type |= GLUT_DOUBLE; + int argc=0; + char *argv[]={"derp",0}; + glutInit(&argc,argv); +// glutInitDisplayMode(type); + glutCreateWindow("hackvr opengl and glut testing"); - for (i = 1; i < argc; i++) { - if (strcmp(argv[i], "-sb") == 0) { - doubleBuffer = GL_FALSE; - } else if (strcmp(argv[i], "-db") == 0) { - doubleBuffer = GL_TRUE; - } - } + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPerspective(60.0, 1.0, 0.1, 1000.0); + glMatrixMode(GL_MODELVIEW); + glDisable(GL_DITHER); + + glutKeyboardFunc(keypress_handler); +// glutDisplayFunc(derp_screen); + glutReshapeFunc(set_aspect_ratio); } + void graphics_event_handler() { - glutMainLoopUpdate(); - return 0; /* ANSI C requires main to return int. */ + glutMainLoopEvent(); +} + +/* +void main(int argc,char *argv[]) { + graphics_init(); + while(1) { + graphics_event_handler(); + } } +*/ |